
<div>
  <ul>
    <li *ngFor="let comment of comments">
      <p> {{comment.content}} </p>
      <span> {{comment.userId.username}} </span>
      &nbsp;&nbsp;
      <span>{{comment.updatedAt | date:'yyyy年MM月dd日 HH:mm:ss'}}</span>
    </li>
  </ul>
</div>
